Swab



July 6 1926.

R. B. KINGMAN SWAB 3 Sheets Sheet 1 Filed Nov.

INVENTOR zzzsseflmgmaw BY A @J fizaw j W ATTORNEYS July 6 1926.

R. B. KINGMAN SWAB Filed NOV. 5, 1925' 3 Sheets-Sheet 2 \NVENTOR 6% JEZGS ATTORNEYS July 6 1926.

R. B. KINGMAN SWAB Filed Nov 5, 1925 3 Sheets-Sheet 5' INVENTOR zizssefffi fi zz amm ATTORNEYS Patented July 6, 1926, I

PATENT I OFFICE.

RUSSELL B. KINGMAN, ORANGE, NEW JERSEY SWAB.

Application filed November 3, 1925. Serial No. 86,489.

This invention relates, generally, to an instrument in the form of aswab for cleaning tubular or cylindrical structures of various kinds,such e. g. as milk Pasteurizing tubes and the like. i

This invention has for its principal object to provide a novelconstruction of swab, either of the dry type, or of the fountain typehaving means for delivering water,

steam or other fluid in connection with and in aid of the cleansingoperations adapted to be performed by the swab.

With the general object of this invention in view, the same comprises anovel construction of swab head provided with novel scouring elementsmade of all-metallic fabric, or composite vegetable fiber and metallicfabric adapted to furnish an eflicient abrasive material calculated toproduce a thorough scouring eflect upon the surfaces v to which it isapplied.

This invention has for a further object to provide a novel constructionand arrangement of dismountable flexible and reversible swab elements,together with, a novel means for operatively coupling said flexible andreversible swab elements with the head of the device.

Other objects of this invention, not at this time more particularlyenumerated, will be clearly understood from the. following detaileddescription of the same.

With the various objects of this invention in view, the same consists,primarily, in the novel construction of swab hereinafter setforth; and,the invention consists, further more, in the novel arrangements andcombinations of the various devices and parts, as well as in the detailsof the construction of the same, all'of which will be hereinafter morefully described; and then finally embodied in the appended claims.

The invention is clearly illustrated in the accompanying drawings, inwhich Figure 1 is a side elevation of the 'iiovel construction of swabmade according to this invention, and showing the arrangement of thesame when .passed through a tube or the reversing functions of theflexible swab elements, .4 f

the like in one direction: and Figure 2 is a,

the swab when passed through a tubeor the Figure 3 is a side elevationof one form of the swab head and detachable keeper member forcoupling'the flexible swab elements therewith.

Figure 4 is an enlarged side elevation of the s'wab head illustrating acovered form thereof, and also showing the. detachable keeper memberready to be applied thereto. Figure 5 is a vertical longitudinal sectionof a covered form of swab head with the flexible swab'elementsoperatively coupled therewith; and Figure 6 is a fra mentary crosssection,-takenon line 66 in %igure 5.

Figure 7 is a side elevation of a fountain type of swab head, a portionof the covering material being broken away; Figure 8 is a verticallongitudinal section through the same; and Figure 9 is a vertical.sectional view of a modified form of detachable kee er member which.may be employed wit saidfountain type of swab head, if desired. j

Figure 10 is a diagrammatic lan view to illustrate one method of assemling a plurality of flexible swab elements; and Figure 11 isadiagrammat'ic perspective view of two flexible swab elements, asdisposed for superimposition one on the'other. Similar characters ofreference are employed in all of the hereinabove described views, toindicate corresponding parts.

Referring now to said drawings, the reference character 12 indicates aswab head in the form of a rigid elongated body, preferably-ofcylindrical conformation. Suitably attached to the lower end ofsaid swabhead is a handlemember 13 of desired length suitable to the particularconditions of use to which the'swab is to'be put. The outer or free endof said swab body 12 is rovided with an axially aligned internal 7 screwthreaded bore 14. The reference character 15 indicates a-keeper memberwhich referably comprisesa relatively short ri corresponding in diameterto the diameterof said swab body 12; said kee r member is provided atitsinner end with a screw threaded shank 16 adapted toscrew into thebore 14 of said swab body-12. In the sim lest form of my novel swabdevice, the swa body 12 and keeper member 15 may be uncovered astetlf'eir exterior surfaces, a ndicated by the full l nes in Figure 3;on be other hand,

. vegetable fibre strands For example, jute threads gimped with flat andvegetable ible fabric is preferably provided with me- 36 stood, however,

' elements 17 such as above described, suitable area are provided withcentral open- 40 ings or perforations 18, and are superim-.

'swab head 12, by

" 16 through the aligned perforations 18, and

for certain classes of work it may be desir able to cover the exteriorsurfaces of either I or both the swab head 12 and keeper member 15 witha covering of abrasive material, in-

5 dicated by the dotted-lines in said Figure 0 rality of flexible swabelements. These swab elements are made of a metallic abrasive fabric,which is either knitted or woven from metallic wire, preferablyof anoncorroslve metal such as copper, to provide 15 ;a relatively coarsefabric of highly eflicient braslve character. The fabric material mayconsist of an all metal type,'or it may consist of a composite typesuitably combining with metallic strands.

copper wire, may be interwoven or knitted to provide the fabric; or suchmetal gimped jute threads may be suitably interwoven with either orfiber cross threads. The flextallic material which is calculated toproduce. the desired abrasive eflects adapted to provide adequatescouring efiiciency. Where 30 strong abrasive effect is the desideratum,an

all metallic fabric may be used; but if a certain amount'of absorbenteflect is desired, the combined metallic and vegetable fiber fabric maybe used. It will be underthat if desired non-metallic fabric swabelements may be employed. A plurality of flexible abrasive fabric$37311)! an o posed one upon the other, preferably in'an irregularmanner, as illustrated in Figures 10 and 11. When a desired number ofsaid flexible swab elements have been thus as- 45 'sembled together, thesame are laid over the-outer or free end of the swab head 12,

' with'their perforations 18 aligned with the threaded bore 14 of thelatter, whereupon ,the keeper member 15 is attached to the passmg itsthreaded shank thereupon screwing the same into the bore 14 of the swabhead 12. The flexible swab elements 17 will thus be firmly gripped orclamped intermediate the end of the swab head 12 and the keeper-member15, so that the free portlons of the same may initially overhang andenvelope the sides of said swab head 12.

In utilizing the swab, in the simple form thereof above described, thesame is inserted in one end. of the tubular or cylindrical member, theinterior of which is desired to be scoured, (indicated at 19 by dottedlines 66 in' Figures 1 and2), and by means of a both metallic crossthreads pushing stroke of the handle member 13, is

advanced or propelled therethrough. When :swab elements 17 are backed.As thus compacted the flexible swab elements will provide a relativelyresilient mass calculated to conform to and frictionally en age theinterior wall surfaces of the mem er 19, while at the same time themyriad of metallic projections, which the metallic fabric comprisingsaid flexible swab elements provides, will exert a highly efficientabrasive scourmg member 19, which will quickly and easily removetherefrom encrusted or otherwise adhering dirt or soil, whereby the saidsurfaces are adequately cleaned. As the swab is advanced beyond the-endof the member 19, its motion is reversed by means of a pulling stroke ofthe handle member 13, whereby the flexible swab elements 4 17 areengaged by the far end of the member-19 and are reversed, (as shown inFigure 2), being thereby folded back to envelop the keeper member 15,and consequently are'supported for scouring eflect by the latter on theretroactive stroke of the swab device thus initiated.

I have found it desirable in some cases to cover the swab head with anabrasive covering. To this end I provide the swab head 12 with anenveloping jacket or cover 20. made of a metallic abrasive fabric, whichmaybein kind similar to any of the specific forms of fabric utilized forthe flexible swab members 17 as above described. This jacket or cover 20may consist of one or more layers of metallic abrasive fabric disposedto encircle the swab head. 12 and secured thereto ateach end by anypractical form of fastening means, such as the staples 21, (see Figures5 and 8 Thecovering thus provided may be furt er reenforced againstother displacement by metallic stitc either or both longitudinal rows 22an transverse rows 23. This covering or jacket 20 serves to provideseveral a vantages; first, it provides a more or less resilient abrasivesurface in connection with the rigid swab head, which permits the latterto be utilized, with the flexible swab elements detached,

ing, in

action upon the said surfaces of the creeping or for-the purpose ofpreliminary cleanlng opface with which the latter elements ma engage toprevent undue pulling strains t ereon, while at the same time providingan added resilient cushionbacking for the flexible swab elements,tending to increase the yieldable pressure of the same against theInterior sides of the member 19 when the device is passed therethrough.

Referring now to Figures 7 to 9 inclusive of the drawings, I have showntherein certain modifications of my novel swab device adapted to furnishthe same in a fountain type, whereby steam, water or other fluid may bedelivered therethrough during and in aid of the scouring and cleansingeffects exerted thereby. In this form my novel swab device comprises arigid substantially cylindrical swab head 12' which is provided with atubular handle member 13', the pas-.

sage 24 of which provides a conduit for-conveying a suitable fluid tothe swab head 12'.

In this case the tubular handle member 13'..

may be extended throughout the length of the swab head 12', and itsouter end maybe internally threaded to receive the shank 16 of thekeeper member-15. The body of the swab head 12' is provided with aplurality of radial discharge ducts .25 which respectivel match lateraldischarge openings 26 provlded in the walls of said tubular handlemember 13, as shown more particularly in Figure 8. In this form of swaprovide the swab head 12' with the cover or acket 20, or it ma beomitted as desired. Ihe flexible swab e ements 17 areprovided andseparably attached to the free end of the swab head 12 by-means of thekee er member 15 in the manner already a ove de scribed. As will. beunderstood, when making use of this fountain type of swab device, steam,water or other desired form of fluid ma be introduced through thepassage 24, an thence discharged through the lateral discharge openings26 and ducts 25, to flow through the interstices of the covering orjacket 20, and through the interstices o the enveloping folds of saidflexible swab elements 17, as thelatter are passed back and forththrough the member 19, thereby adding to the abrasive scouring effects,the cleansing efiects of the supplled fluid. As will be evident from aninspection of Figure 9, the keeper member may also be constructed toprovide, if desired, fluid discharge assages in communication with fluiddeivery conduit 24 of the handle, member. 13'.

In such case I provide a keeper member body 15' having an externallythreaded shank 16' axially imbedded therein so as to project from oneend thereof. Said shank 16' is provided with a lon 'tudinal passage 27to communicate with t econduit 24 of the handle 'member 13'. The bod ofthe keeper member 15' is provided wit a plurality of radial dischargeducts 28 which respectively match lateral discharge ope 29 provided inthe walls of the tubular v ank16'1 By this modified form of keepermember 15 the device I may steam, water or other desired fluid may bedischarged from the keeper member as well as from the swab head.

I am aware that some changes may. be made in the arrangements andcombinations of the several devices and parts of my novel swab, as wellas in the retails 'of the construction thereof, and I therefore reservethe right to such constructions as do not depart from the scope of thisinvention as set forth in the foregoing specification, and as definedmetallic fabric material detachably mounted intermediate said headmember and keeper member andretained insuch relation by the latter, thefree ends of said flexible swab means being of such length as to beadapted to fold down and about said head member so as to be backed bythe same inone operative position but also adapted to be flexed.

away from said head to fold upwardly and about said keeper member so as.to be backed by the latter in another operative position.

2. In a device of the kind described, a; rigid swab head, an externalfixed jacket of abrasive metallic sheet fabric secured in fixedenveloping relation to said swab head,

a handle member extending axially from one end of said swab head, aflexible swab element composed of abrasive metallic sheet; fabric, andmeans connecting said swab element with the free endof said rigid swabhead and permitting said swab element to be flexed over and away fromsaid head.

3. In a device of the kind described, a rigid swab head having a handlemember extending axially from one end thereof and an internally threadedbore in the opposite free end thereof, an external jacket of abrasivemetallic fabric secured in fixedenveloping relation to said swab head, aflexible swab element composed of abrasive metallic fabric arranged atthe free end of said swab head adapted to be flexed over and away fromthe ead, and akeeper member having a threaded shank received in saidinternally threaded bore of said swab head to detachably clamp said swabelement intermediate the latter and said kee er member. 1

'4. In a device of t e kind described, a rigid swab head havingradiallateral passages, an axial tubular handle member on which said swab headis fixed, said-handle, member having lateral openings in its walls Ill Iregistering with said radial lateral passages head, a flexible swabelement composed of abrasive metallic fabric, and means connecting said.swab element with the free end of said rigid swab head and permittingsaid swab element to be flexed over and away from saidvhead.

5. In a device ofthe kind described, a rigid swab head having radiallateral passages, an axial tubular handle member on of said swab whichsaid swab head is fixed, said handle member having lateral openings inits walls registerlng with said radial lateral passages of said swabhead, a flexible swab element composed of abrasive metallic fabric,means connecting said swab element with the free end'of said rigid swabhead and permitting said swab element to be flexed over and away fromsaid head, andan externaljacket of abrasive metallic fabric secured infixed enveloping relation to said swab head.

6. A swab, comprising a rigid elongated ber of cross sectional shape anddiameter corresponding to that of said head member, meansfor detachablyconnecting said keeper member in axial alignment with the free end ofsaid rigid member, flexible swab elements detachably mountedintermediate said head member and keeper member, the free ends of saidflexible swab-elements being of such length as to be adapted to folddown and about said head member so as to be backed by the same in oneoperative also adapted to be flexed away fromsaid position but head tofold upwardly and about said keeper member so to be backed by the latterin another operative position. 1

In testimony, set forth above I this 29th day of October, 1925.

RUSSELL B. KINGMAN.

that I claim the invention have hereunto set my hand

